• US2338161A - Method of manufacturing sheave wheels : en
  • CA417611A - Material particle detaching and cleaning method : en fr
  • US2338277A - Evaporator : en
  • US2338449A - Device for controlling multiple shutters : en
  • US2338315A - Locking means for shipping boxes : en
  • US2338320A - Broadcasting apparatus : en
  • US2338434A - Signaling system : en
  • US2338178A - Condensation product : en
  • US2338587A - Method of treating cellulose esters : en
  • US2338291A - Two-way strainer : en
  • US2338466A - Electrolytic production of succinic acid : en
  • DE743279C - Amplifier circuit for amplifying direct voltages or alternating voltages of low frequency : de en
  • DE744010C - Electric motor with planetary roller gear mounted on the same axis as the motor shaft : de en
  • US2338526A - Frequency variation response network : en
  • US2338532A - Pay roll board : en
  • CA417564A - Fluid seal : en fr
  • US2338414A - System for guiding mechanical sound records : en
  • USD136967S - Design fob a toy gun : en
  • FR889199A - Improvements made to coupling means for vehicles : en fr
  • DE744021C - Process for the manufacture of a cleaning agent : de en
  • US2338271A - Mechanical adjustment means : en
  • US2338691A - Molten metal for temperature control : en
  • FR889163A - Improvements to articulated wooden soles : en fr
  • DE743857C - Process for applying binding agents to the fibrous materials before molding the mass when producing objects from wood : de en
  • DE743099C - Dynamometer : de en
  • FR889233A - Improvements to insulating bodies in the form of plates, half-cuvettes, molded parts and the like : en fr
  • CA417516A - Valve assembly : en fr
  • DK61781C - Closing and Carrying Device for Bags, in particular of Paper. : da en
  • DE746834C - Circuit arrangement for slot magnetic field tubes : de en
  • GB558500A - Self retaining spring cotter pin : en
  • DK61762C - Procedure for Concentrating or Purifying Liquids or Gases by Cataphoresis. : da en
  • GB558476A - An improved ball and socket joint : en
  • GB558465A - Improvements in mosaic targets for cathode-ray tubes particularly for television transmission : en
  • FR889343A - Rangefinder : en fr
  • US2338141A - Connector plug : en
  • US2338396A - Liquid meter : en
  • US2338227A - Process of sterilizing fermenter vessels : en
  • CA417546A - Thermal starting switch : en fr
  • GB558401A - Improvements in and relating to motion transmitting linkwork : en
  • US2338383A - Combined abrasive pulpifier and washing apparatus : en
  • US2338572A - Steerable tail wheel : en
  • US2338607A - Method of preparing cartridges : en
  • DE743953C - Method and device for the elimination of exhaust gases from internal combustion engines fed with oxygen in submarines : de en
  • FR889226A - Gear shift mechanism : en fr
  • US2338236A - Domestic appliance : en
  • US2338286A - Processing of elastic polychloroprene : en
  • CA417596A - Card index file : en fr
  • DE744023C - Process for degreasing skin, leather or fur : de en
  • US2338352A - Press : en
  • US2338241A - Stamping machine : en
  • US2338308A - Machine for threshing flax and the like : en
  • DE743930C - Network for the frequency-dependent influencing of the amplitude of electrical oscillations : de en
  • DE743618C - Device for regulating fuel injection in internal combustion engines : de en
  • DE743997C - Loading device : de en
  • FR889229A - Metal attachment tab and its hanging loop for sling, with special attachment of the strands : en fr
  • DE744067C - Device for transferring pattern lines and marks on fabric webs by means of color liquid : de en
  • US2338344A - Tungsten bronze article produced from metal powders : en
  • USD136953S - Design for a measuring stick or the like : en
  • FR889344A - Polycondensation products and their preparation process : en fr
  • FR889232A - Sealing device for unlimited metal bars, solid or hollow, during their continuous casting : en fr
  • FR889360A - Installation of electric ovens with at least two induction ovens : en fr
  • USD136989S - Design for a suit : en
  • DE743815C - Outline design of an angular foot lever for brakes, clutches or the like of motor vehicles : de en
  • FR889202A - Remote control and servo device : en fr
  • US2338122A - Printing telegraph apparatus : en
  • FR889270A - Device for supplying electric current to a power plant fitted with an internal combustion engine, in particular in motor vehicles : en fr
  • GB558354A - Improvements relating to air cooled internal combustion engines : en
  • US2338375A - Manufacture of hosiery : en
  • DE743769C - Pattern knitting machine, in particular flat pattern knitting machine and method for producing patterned knitted fabric on such a machine : de en
  • US2338226A - Sleeping bag : en
  • USD136996S - Design for a foldable, fabric : en
  • DE744051C - Rapid traverse control for machine tools, especially for milling machines, with rapid traverse motor : de en
  • DE744050C - Changeable additional support for a long, bridge-shaped machine bed for machine tools, especially boring mills for locomotive rod bearings : de en
  • US2338237A - High-frequency electron discharge apparatus : en
  • US2338454A - Motor : en
  • DE744070C - Gaerb tub installations for the air yeast process : de en
  • FR889224A - Improvements in the arrangement of tubular heating elements forming a rotating beam for concentrating apparatus : en fr
  • DE743931C - Adjustment device for high frequency variometer : de en
  • FR889289A - Assembly process of a packet of sheets or sheets : en fr
  • FR889267A - Piston ring, especially for internal combustion engines : en fr
  • DE743991C - Trough for hollow pallet machines with heating channels : de en
  • DK61780C - Cyclone-type air purifier. : da en
  • FR889379A - Power supply system for repeater stations or the like : en fr
  • FR889310A - Process for preventing the formation of nitrous resin in gases : en fr
  • DE743831C - Solvent for chlorine : de en
  • DE743869C - Procedure for pest control in mills or related businesses : de en
  • US2338282A - Method of treating wells : en
  • US2338611A - Start-and-stop mechanism for sewing machines : en
  • US2338680A - Motion picture mechanism : en
  • GB558417A - A machine for cutting, registering and checking coupons and the like used in rationing schemes : en
  • US2338102A - Ampoule : en
  • DE744011C - Indirectly heated rod-shaped glow cathode for electron tubes : de en
  • US2338330A - Apparatus for making tubular rivets : en
  • FR889348A - Gravity-operated launching cradle : en fr
  • US2338274A - Game missile : en
  • DE744004C - Switching arrangement for the automatic control of the switches in electrical distribution systems : de en
  • GB558389A - Improvements in coupling devices : en
  • US2338343A - Watch crystal assembly tool : en
  • US2338101A - Inverted guide valve unit : en
  • FR889263A - Combined wood and coal gasifier : en fr
  • DE743922C - Adjusting device for rolling mills : de en
  • GB558495A - Improvements in or relating to wire drawing machines : en
  • FR889281A - Advanced photographic lens : en fr
  • US2338626A - Tool chuck : en
  • USD136952S - Design for an electric shoe shiner : en
  • FR889241A - Deep fusion electric welding process : en fr
  • GB558513A - Improvements in and relating to life saving apparatus for submarines and the like : en
  • US2338124A - Glareproof shield : en
  • US2338480A - Bearing material and bearing : en
  • US2338222A - Implement for preparing beet rows for harvesting : en
  • US2338355A - Coastal and like defense unit : en
  • US2338461A - Lacquer and a process of applying same : en
  • GB558481A - Improvements in and relating to look-out reflectors for use on motor vehicles : en
  • US2338342A - Amplifier circuit : en
  • USD136980S - Design for a case for a lighter or the like : en
  • CA417567A - Spinning cot : en fr
  • DK61767C - Swivel Switch for Connecting Electrical Conductors. : da en
  • GB558426A - Improvements in or relating to gyroscopically-controlled automatic pilot devices : en
  • CA417586A - Belt conveyer idler : en fr
  • US2338191A - Duct : en
  • US2338549A - Filter bag : en
  • DE743974C - Moth repellent : de en
  • DK61782C - Drum brake, especially for Bicycles. : da en
  • DE743972C - Circuit breakers, in particular switches with arc extinguishing by a pressure medium : de en
  • DE746938C - Device for the production of photographic sound recordings with pure tone effect : de en
  • DK61775C - Drive game with two Engines and with several Speed Steps. : da en
  • US2338107A - Cartridge clip : en
  • US2338213A - Garment hanger : en
  • US2338400A - Machine for viewing and segregating film : en
  • DK61776C - Insert for Magazine Stoves, especially for Combustion of Sawdust. : da en
  • DE743892C - Energy storage for wind power machines : de en
  • US2338086A - Nonspill bottle for ink and other fluids : en
  • US2338546A - Combustion apparatus : en
  • US2338266A - Apparatus for making tubing : en
  • GB558494A - Improvements in or relating to the production of amino acids such as alanine : en
  • DE743877C - Drilling device with automatic axial feed of the tool : de en
  • FR889353A - Locking for hydraulic control cylinders : en fr
  • DE743903C - Winding for transformers and reactors : de en
  • US2338354A - Coastal and like defense unit : en
  • USD136962S - Design fob a game board : en
  • FR889293A - Improvements to transit time lamps comprising at least one hollow resonator through which the electron beam passes : en fr
  • US2338217A - Production of petroleum : en
  • FR889161A - External condenser with juice collection cup for pipes : en fr
  • US2338142A - Gasoline filtering process : en
  • FR889381A - Coincidence range finder for camera : en fr
  • IE16527L - Wire jointing. : en
  • US2338185A - Locomotive boiler : en
  • US2338221A - Timing mechanism : en
  • DE743916C - Ship unloading bridge : de en
  • DE743998C - Contact line for electric railways : de en
  • CA417502A - Egg cleaning machine : en fr
  • DE744074C - Method of drying fabrics : de en
  • FR889319A - Reinforced concrete floor : en fr
  • FR889384A - Process for the plasticization of products made of vulcanized artificial rubber : en fr
  • US2338374A - Cultivator attachment : en
  • US2338612A - Aircraft covering attachment : en
  • US2338233A - Reduction in reflection from transparent material : en
  • DE743871C - Device for starting free-flying piston engine compressors with the aid of compressed gas : de en
  • FR889237A - Method of producing a mechanical connection between two parts, one of which is in the form of a plate : en fr
  • GB558510A - Improvements to an optical device for checking the alignment of the geometrical axesof two mechanical parts : en
  • FR889171A - Improvements to folding landing gear for airplanes : en fr
  • US2338386A - Process for producing fabricsimulating material : en
  • US2338683A - Unsaturated esters of aryloxy alcohols : en
  • DE743804C - Device for the production of photographic enlargements : de en
  • DE744056C - Driving device for motor vehicles : de en
  • DE741547C - Casting mold for the production of air-cooled engine cylinders : de en
  • FR889211A - Application of low thicknesses of any kind and any consistency to replace high cost materials, in packaging : en fr
  • FR889366A - Tower : en fr
  • GB558446A - Improvements in or relating to electron discharge devices : en
  • GB558448A - Internal combustion engine : en
  • US2338527A - Frequency variation response network : en
  • US2338673A - Method of recovering film scrap : en
  • US2338165A - Method of cleaning ferrous metal articles : en
  • US2338238A - Can opener : en
  • GB558403A - Improvements relating to fuel injectors for internal combustion engines : en
  • GB558439A - Improvements in or relating to microphones, telephone or like transmitters or receivers : en
  • US2338648A - Dehorning chisel : en
  • DE743884C - Hydraulic fluid brake for vehicles with two opposing pistons of different diameters : de en
  • FR889340A - Computer network for the continuous determination of the values of a quotient of functions of several independent variables : en fr
  • GB558459A - Improvements in or relating to liquid containers : en
  • USD136961S - Design fob an oil filter casing : en
  • USD136982S - Design fob a coat : en
  • US2338427A - Regenerating of vulcanized rubber : en
  • US2338617A - Charging bucket : en
  • GB558511A - Improvements in wave length modulation : en
  • US2338294A - Tired wheel : en
  • US2338322A - Torpedo : en
  • DE744044C - Method for producing an emergency running layer on running surfaces, in particular internal combustion engine pistons made of light metal alloys : de en
  • US2338257A - Clutch mechanism : en
  • US2338310A - Bottle rack : en
  • US2338317A - Portable derrick : en
  • DE743791C - Rotary valve seal for cylindrical rotary valve on internal combustion engines : de en
  • DE744040C - Cylinder head for multi-cylinder internal combustion engines : de en
  • FR889240A - Gear shift radial blower, particularly intended for two-stroke and gear shift internal combustion engines : en fr
  • DE743842C - Adjustable balancing capacitor : de en
  • US2338662A - Hypo eliminator solution : en
  • US2338388A - Irradiating tube : en
  • DE744022C - Lubricant for dry drawing : de en
  • GB558407A - An improved sheathing for cores used in forming the voids in concrete and the like : en
  • GB558437A - Improvements relating to mechanical loading and conveying of loose material : en
  • DE744002C - Amplifier or receiver with two power amplifier stages working in parallel : de en
  • FR889183A - Portable and adjustable device for the rapid assembly of welded frames of bicycles, tandems or the like : en fr
  • FR889354A - Aluminum-copper-magnesium alloy : en fr
  • GB558423A - Diamines : en
  • DK61763C - Procedure for the production of pure aluminum sulphate from aluminum ores. : da en
  • FR889287A - Poly-condensation products and their preparation process : en fr
  • GB558405A - Improved method of making spark plugs : en
  • DE743994C - Method and apparatus for cooling and crushing molten calcium carbide : de en
  • US2338498A - Electrical system : en
  • GB558350A - Improvements in and relating to washing machines : en
  • US2338536A - Navigational instrument : en
  • DE743874C - Detachable belt connection, especially for V-belts : de en
  • FR889272A - Device for automatic adjustment of the start of injection in internal combustion injection engines : en fr
  • US2338682A - Antiaircraft gun : en
  • US2338500A - Water conditioning apparatus : en
  • GB558368A - Improvements relating to fuel supply systems of internal combustion engines : en
  • GB558454A - Improvements relating to frequency control in ultra-high-frequency circuits : en
  • DE743839C - Push-pull A amplifier circuit with negative feedback : de en
  • FR889214A - Devices making it possible to use all the fuels producing carbon monoxide in a single generator; and recovery devices : en fr
  • GB558489A - Improvements in or relating to apparatus for conveying and delivering articles : en
  • GB558399A - Improvements relating to push-chairs and the like : en
  • FR889191A - Advanced sandblaster used in particular for cleaning spark plugs in explosion engines : en fr
  • FR889394A - Method and apparatus for producing a thin sheet material, usable in the making of packaging, and other applications : en fr
  • FR889341A - Impeller for centrifugal fans : en fr
  • CA417531A - Movable truck jack : en fr
  • CA417541A - Dynamo-electric machine : en fr
  • DK61772C - Folding chair. : da en
  • GB558427A - Improvements in a method and apparatus for applying fastener elements of a sliding clasp fastener to stringers : en
  • GB558422A - Improvements in or relating to induced draught fans and the cleaning of dust laden air or gas : en
  • FR889383A - Vehicle running on rails, in particular freight wagon with longitudinal axis for high running speeds : en fr
  • US2338521A - Housing for fluorescent lamps : en
  • USD136974S - Design for a hat : en
  • GB558379A - Nut anchor : en
  • CA417507A - Stable colloid preparation : en fr
  • USD136986S - Badge or similar article of manufacture : en
  • DE744066C - Device for dividing individual threads from cross-read chains for chain attachment machines and similar machines : de en
  • GB558352A - Improvements in and relating to earth-excavating scrapers : en
  • GB558378A - Improvements in and relating to sheet metal working machines : en
  • GB558355A - Improvements in or relating to apparatus for measuring or indicating roughnesses or undulations of a surface : en
  • US2338425A - Cigarette case and server : en
  • US2338455A - Thermal container for liquids or solids : en
  • US2338676A - Phenolic coupler compound : en
  • FR889180A - Process for the manufacture of metallic pigments for paints and coatings : en fr
  • US2338255A - Therapeutic device : en
  • GB558480A - An improved live centre for machine tools : en
  • US2338557A - Synchronous motor control : en
  • CA417588A - Cycle tread crank mechanism : en fr
  • CA417552A - Sound reproduction system : en fr
  • CA417574A - Masonry structure : en fr
  • DE743969C - Electric circuit breakers, in particular switches with arc extinguishing by a flowing pressure medium : de en
  • US2338470A - Damping mechanism : en
  • US2338193A - Foundation garment : en
  • US2338368A - Water heater : en
  • US2338629A - Closure structure : en
  • US2338535A - Shock absorbing and buoyant vest : en
  • US2338554A - Handle for electric appliances : en
  • US2338581A - Catalytic process : en
  • FR889177A - Front or rear brake with bridge forming a spring and ensuring flexible closing and automatic opening of the brake : en fr
  • CA417495A - Thermoplastic material spraying apparatus : en fr
  • CA417538A - Electric discharge apparatus : en fr
  • DE743926C - Electrically heated damper : de en
  • DE744038C - Method and device for planting young plants in soil balls : de en
  • CA417578A - Electric discharge lamp and starting device : en fr
  • DE743829C - Process and device for evaporation of all kinds of alkalis : de en
  • DE743978C - Agitator for foam swimming machines with rotating agitator : de en
  • FR889166A - Internal combustion engine power supply device and its components : en fr
  • US2338690A - Valve action : en
  • US2338225A - Vehicle body : en
  • US2338387A - Apparatus for irradiating liquids : en
  • DE743835C - Safety control for steam power plants : de en
  • CA417570A - Motor toboggan : en fr
  • CA417515A - Bottle stopper : en fr
  • DE743287C - Process for the extraction of pure coal with the lowest ash content by processing pretreated low-ash coal by means of foam flotation : de en
  • DE744032C - Fastening of wooden rafters on purlins made of profile iron : de en
  • CA417500A - Cavity inspection device : en fr
  • US2338684A - Side frame : en
  • US2338187A - Heat stable composition containing vinyl chloride polymers : en
  • US2338290A - Tray rack : en
  • USD136957S - Design fob a coat : en
  • FR889215A - Filter for gasifiers : en fr
  • US2338148A - Feeding apparatus : en
  • US2338152A - Fluid meter : en
  • US2338641A - Method of making yarn : en
  • USD136979S - Design for a bobeche or similar article : en
  • US2338339A - Massaging vibrator : en
  • US2338390A - Reinforced garment bag : en
  • US2338627A - Symmetrical aryl disubstituted alkylol guanidine : en
  • USD136991S - Design fob a dress : en
  • DE743015C - Control arrangement for electric locomotives with high voltage direct current with control group : de en
  • DE743190C - Pest repellants : de en
  • CA417583A - Pulse modulation system : en fr
  • CA417554A - Inside coating apparatus : en fr
  • CA417528A - Alloy material treating apparatus : en fr
  • USD136981S - Baldwin^ etal mining machine : en
  • FR889165A - Improvement in automatic hearth grids : en fr
  • CA417534A - Cellulose derivative composition : en fr
  • DE743552C - Spray gun for applying paint to the inner surface of closed hollow bodies that are only accessible from the outside at one point : de en
  • DE744095C - Current dependent relay arrangement : de en
  • DE743858C - Process for reducing the viscosity of chlorinated rubber solutions : de en
  • DE743876C - Pressure reducing valve : de en
  • FR889313A - Gas consumption indicator, especially for high flow rates : en fr
  • FR889326A - Method and device for the continuous treatment of endless ribbons of artificial threads : en fr
  • US2338125A - Automatic pressure operated lathe : en
  • US2338511A - Posture chair : en
  • US2338415A - Process of preparing gelatin nutrient products : en
  • GB558456A - Improvements in and relating to laundry washing machines : en
  • CA417506A - Scraping and loading machine : en fr
  • DE743805C - Single pack usable as a recording cassette for X-ray films : de en
  • DE744085C - Device for making ice : de en
  • US2338313A - Fire extinguishing apparatus : en
  • CA417585A - Hose guide : en fr
  • CA417589A - Rotary brush section : en fr
  • FR889317A - Locking removable parts in firearms : en fr
  • DE743870C - Procedure for pest control in mills or related businesses : de en
  • DE743847C - Permanent magnet : de en
  • DE743999C - Section separator for contact lines for electric railways : de en
  • GB558294A - Catalysts and the preparation thereof : en
  • GB558485A - Improvements relating to floating coastal defence units : en
  • DE743885C - Weather wing for motor vehicles : de en
  • FR889242A - Mufflers for internal combustion engines : en fr
  • FR889245A - Method of improving sound damping by rigid walls : en fr
  • US2338491A - Powdered material press and control : en
  • GB558373A - Improvements relating to rotary pumps : en
  • US2338109A - Lightningproof watt-hour meter : en
  • US2338418A - Filtering and like treatment of fluids : en
  • US2338095A - Adjustable processing punch : en
  • US2338534A - Preparation of d-galacturonic acid and its salts : en
  • US2338670A - Retractable hard formation bit : en
  • US2338359A - Conveyer : en
  • DE743914C - Bullet for hunting purposes with a continuous soft lead core : de en
  • GB558493A - Improvements relating to gas meters : en
  • DE744039C - Fuel quantity regulation of supercharged aircraft internal combustion engines : de en
  • DE743970C - Electric circuit breakers, in particular switches with arc extinguishing by a flowing pressure medium : de en
  • US2338484A - Grinding tool : en
  • DE744049C - Device to ensure the proper return of the gauge that has been delivered in layers after the machining of workpieces on sensor-controlled machine tools, especially fine boring mills : de en
  • DE743661C - Process for the preparation of N-substituted aminocarboxylic acids : de en
  • DE743808C - Photographic camera whose lens is coupled to a range finder : de en
  • US2338203A - Extrusion molding machine : en
  • FR889282A - Photographic lens : en fr
  • FR889298A - Hollow construction chipboard : en fr
  • US2338084A - Internal combustion engine : en
  • US2338183A - Internal combustion engine : en
  • DE743845C - Braun's tube with an electrostatic deflection system and additional radial deflection in polar coordinates : de en
  • GB558455A - Improvements relating to coastal and like defence works : en
  • US2338589A - Locomotive valve gear : en
  • FR889393A - Machine for the continuous production, by welding, of sutures on pieces of hot plastic artificial materials : en fr
  • US2338278A - Floor jack : en
  • DE744006C - Device for interrupting electrical circuits in power systems : de en
  • DK61784C - Assembly device at wooden boxes. : da en
  • FR889292A - Single-stroke circular combustion engine : en fr
  • US2338514A - Variable speed gearing : en
  • GB558406A - Improvements relating to the washing and drying of dishes, kitchen utensils and the like : en
  • GB558450A - A cathode-ray tube suitable for use as an indicator : en
  • GB558484A - Improvements relating to floating coastal defence and like units : en
  • GB558384A - Improvements in or relating to lawn mowers : en
  • GB558502A - Improvements in or relating to sliders for sliding clasp fasteners : en
  • US2338194A - Refrigerator cabinet construction : en
  • US2338566A - Electromagnetic device : en
  • US2338099A - Alkali-resistant glaze : en
  • US2338160A - Loading machine : en
  • US2338331A - Face guard for sewing machine operators : en
  • DE743941C - Stretcher with sled runners : de en
  • DE742400C - Molding sand bunker with pneumatic emptying : de en
  • DE743786C - Temperature measuring device : de en
  • DE744052C - Device for adjusting the knife angle of knife heads, especially for metalworking : de en
  • US2338176A - Glass marking composition : en
  • US2338307A - Pipe coupling : en
  • FR889217A - Improvements to brake mechanisms actuated by pressurized fluid : en fr
  • US2338493A - Triazine derivatives : en
  • CA417511A - Harmonichord instrument : en fr
  • FR889395A - New derivatives of sulfonated amines : en fr
  • DE743855C - Multiple form : de en
  • US2338283A - Grading machine : en
  • FR889273A - Process for obtaining inscriptions, images or the like on surfaces of aluminum and its alloys : en fr
  • FR889321A - Process for the preliminary preparation and roasting of flotation blends and other fine blends : en fr
  • GB558363A - Improvements in or relating to fluid pressure apparatus : en
  • US2338201A - Brake : en
  • US2338620A - Method of repairing air bags : en
  • DE743942C - Soap-like skin washes : de en
  • US2338661A - Photographic tone correction mask : en
  • AU123327B2 - Improvements in and relating to holders for thermionic valves andother electric devices : en
  • GB558414A - Improved self-locking nut : en
  • FR889244A - Manometric installation for airplanes : en fr
  • GB558490A - Improved process for preserving and retarding the reactivity of easily reactable salts particularly for use in baking powders : en
  • GB558515A - Improvements in or relating to photographic apparatus employing roll film : en
  • DE743987C - Combined tilting and parallel lifting table for rolling mills : de en
  • US2338112A - Pump for pasty masses, as concrete : en
  • US2338293A - Method and apparatus for balancing propellers : en
  • US2338157A - Controlling device : en
  • US2338659A - Conduit clip and supporting bracket : en
  • GB558420A - Valve for plural chamber safety tube : en
  • FR889278A - Lug fitted with a protective shield with screen and internal resistance for spark plugs : en fr
  • DE743945C - Process for the production of films, coatings, impregnations and the like like : de en
  • IE16546L - Joints for concrete paving and foundations : en
  • FR889197A - Shoe protector : en fr
  • FR889234A - Improvements to manufacturing processes for insulating materials : en fr
  • DE743988C - Profiled spindle for wet treatment of yarn packages : de en
  • FR889221A - Device for canceling the influence of heating on the support assembling the working part of a machine or an instrument to its frame : en fr
  • GB558506A - Improvements relating to electric flash welding : en
  • DE743784C - Optical torsional vibration meter : de en
  • US2338645A - Truck and article carrier structure assembly : en
  • US2338114A - Process for the preparation of polyhydroxydibasic acids and their salts : en
  • FR889364A - Large jointless sheet for light constructions : en fr
  • DK61766C - Antenna system. : da en
  • US2338128A - Mortar flare shell : en
  • US2338595A - Distillation process : en
  • US2338098A - Air operated instrument and driving means therefor : en
  • US2338146A - Chalk trough : en
  • CA417600A - Unsaturated alcohol : en fr
  • US2338184A - Coconut product : en
  • CA417501A - Oil filter cartridge : en fr
  • CA13581S - Pressure cooker : en
  • US2338092A - Supporting device : en
  • US2338445A - Production of alicyclic ketones from alicyclic alcohols : en
  • DE743794C - Method for cleaning objects : de en
  • DE743698C - Process for the production of resins containing ester groups : de en
  • CA417504A - Multicolour printing process : en fr
  • FR889151A - Engine : en fr
  • FR889290A - Artificial products based on cellulosic derivatives and their preparation process : en fr
  • DE743778C - Dropper bottle : de en
  • DE744047C - Device for the automatic lifting and conveying of metal sheets or the like from a liquid bath : de en
  • DE744013C - Device for supporting the electrode system of an electron tube against the tube piston : de en
  • US2338333A - Screw type fastener : en
  • GB558505A - Improvements in or relating to sound picture films : en
  • FR889210A - Molten glass cutter : en fr
  • DE744072C - Process for enriching non-alcoholic beverages, in particular beer or beer-like beverages, with vitamins and other active ingredients from yeast : de en
  • FR889390A - Head reinforcement, without sealant, for cable head : en fr
  • FR889190A - Cleaning or degreasing product : en fr
  • GB558393A - Improvements in or relating to mercerising liquors : en
  • US2338436A - Track chain vehicle : en
  • US2338594A - Engine starting mechanism : en
  • US2338151A - Corn protein printing ink and ink base : en
  • GB558398A - Improvements in means for regulating and controlling the flow of fluid from pneumaticcompressors and hydraulic pumps : en
  • GB558425A - Improvements in or relating to processes for the protection of magnesium and magnesium base alloys against corrosion : en
  • FR889330A - Device intended for the fluoroscopy of worked parts : en fr
  • FR889231A - Wet stripping agent : en fr
  • DE743864C - Electron beam tube : de en
  • DE744016C - Process for the production of photoresist surface cells with a translucent cover electrode : de en
  • US2338640A - Solenoid operated electric vibrator : en
  • FR889216A - Red monoazoic acid dye : en fr
  • DE743901C - Procedure for the parallel operation of AC rail networks with frequencies up to 25 Hz : de en
  • FR889222A - Sliding closure with interlocking elements and its construction : en fr
  • CA417518A - Boring machine : en fr
  • US2338316A - Insulating bushing for electrical conduits and the like : en
  • US2338635A - Glue applicator roll : en
  • USD136995S - Design for a dress ensemble : en
  • US2338468A - Channeled girder or truss : en
  • US2338487A - Fish guard : en
  • US2338280A - Vulcanizer : en
  • FR889265A - Game device : en fr
  • US2338311A - Stoker : en
  • US2338666A - Method of securing fittings to hose-ends : en
  • US2338689A - Process of treating and conditioning containers : en
  • DE744053C - Process for increasing the shelf life and baking ability of bread grain, especially wheat : de en
  • CA417555A - Gas-fired bell furnace : en fr
  • US2338423A - Apparatus for measuring direct currents or voltages : en
  • US2338247A - Therapeutic device : en
  • DE746740C - Circuit arrangement for receiving wireless messages : de en
  • US2338108A - Method of packaging beverages : en
  • US2338547A - Bowling ball cleaner and guide : en
  • US2338569A - Preparation of coumarin-3-carboxylic acid : en
  • US2338553A - Pay roll board : en
  • DE743803C - Process for copying normal cinematographic films onto narrow films : de en
  • DE743774C - Process for the production of prosthesis shells from wood veneer sheets : de en
  • FR889304A - Improvements made to dust vacuum cleaners : en fr
  • GB558516A - Improvements in or relating to a roll film photographic camera and film spool therefor : en
  • FR889277A - Chrome, tungsten, cobalt and molybdenum steel : en fr
  • DE743952C - Spreading flap control rods in hoods of air-cooled internal combustion engines in aircraft, radiator hoods o. : de en
  • GB558377A - Internal combustion rotary engines : en
  • FR889276A - Bag closure : en fr
  • FR889347A - Device for presenting cards in card library drawers, boxes etc. : en fr
  • GB558366A - Improvements in or relating to electric soldering irons : en
  • DE743608C - Alloys for dental purposes : de en
  • FR889164A - Advanced device for adjusting the self-induction of an oscillator winding : en fr
  • GB558498A - Improvements in or relating to tailless aeroplanes : en
  • GB558483A - Improvements in apparatus for teaching arithmetic : en
  • US2338366A - Hob : en
  • US2338395A - Signal transmission system : en
  • FR889251A - Angle measuring device : en fr
  • GB558419A - Applying metallic skins to metal framework : en
  • FR889268A - Adjusting device for power transmission comprising a hydraulic current mechanism, in particular for motor vehicles : en fr
  • GB558445A - Improvements relating to vapour electric apparatus : en
  • GB558518A - Improvements in or relating to apparatus for conveying and delivering articles : en
  • DE743920C - Floodlight for generating delimited light fields : de en
  • FR889158A - Balancing device for first-order reversing torques in two-stroke combustion engines : en fr
  • US2338220A - Process of making oxazolidinediones : en
  • AU1252644A - Improvements in and relating to securing means for holders of thermionic valves, andthe like : en
  • GB558488A - An improved coin-inlet mechanism for use on prepayment apparatus for commodities such as gas, electricity or the like : en
  • DE743846C - Device for operating a discharge vessel arranged within an induction coil with an open magnetic circuit : de en
  • GB558391A - Improvements in electrical resistance heating elements : en
  • US2338653A - Ash receiver : en
  • CA417584A - Metal casting machine : en fr
  • CA417610A - Textile material processing : en fr
  • US2338558A - Method of making intaglio cylinders : en
  • CA417595A - Heating apparatus for injection moulding machines : en fr
  • US2338150A - Washing machine : en
  • CA417509A - Cinder pot : en fr
  • DE743759C - Arrangement for controlling Leonard sentences : de en
  • CA417551A - Gypsum board drying apparatus : en fr
  • US2338149A - Combined stain and filler and process of making : en
  • US2338646A - Shading generator : en
  • AU121707B2 - Phasing device for synchronous telegraph system : en
  • CA417561A - Shaft bearing : en fr
  • US2338127A - Valve : en
  • US2338263A - Pencil sharpener : en
  • US2338402A - Method for the removal of carbonic oxide from gases : en
  • GB558441A - Improvements in or relating to weighing machines : en
  • CA417587A - Electron discharge device electrode spacer : en fr
  • DE743833C - Process for the electrolysis of sodium sulfate solution : de en
  • US2338519A - Step-voltage regulator : en
  • AU1253244A - Arrangement for speed-compounding ofa three-phase generatorcascade as prime mover ofan asynchronous audio-frequency generator : en
  • CA417523A - Spring structure : en fr
  • US2338367A - Worm gearing : en
  • CA417560A - Powdered material dispensing mechanism : en fr
  • CA417517A - Rotary plough : en fr
  • DE743859C - Process for the production of solutions or pastes from polyvinyl chloride : de en
  • CA417520A - Lavatory fixture : en fr
  • US2338265A - Refrigeration : en
  • US2338657A - Shutter and camera structure : en
  • CA417539A - Transformer tap-changing circuit : en fr
  • US2338678A - Method of and apparatus for forming venetian blind slats : en
  • USD136951S - Design for a dilutee : en
  • US2338136A - Log barker and cleaner : en
  • US2338340A - Decorating apparatus for coated confections and the like : en
  • US2338453A - Assembly maintaining and sealing means for draft gears : en
  • US2338652A - Method of making high explosive shells : en
  • DK61779C - Control tap, especially for Radiators. : da en
  • GB558464A - Improvements in mole-draining implements, commonly called mole-drainers or mole-ploughs : en
  • CA417582A - Electric signal responsive device : en fr
  • US2338246A - Structural cement slab : en
  • USD136973S - Design for a hat : en
  • US2338163A - Ironing machine : en
  • DE743793C - Internal combustion engine with uninterrupted combustion of solid fuels in a special controlled combustion chamber : de en
  • FR889179A - Progressive forward movement and rapid release in the lathes to rebound constant profile cutters : en fr
  • FR889318A - Method and device for the production of longitudinal profiles, for example teeth, on the surface of round workpieces : en fr
  • GB558430A - An improved steady for lathes and the like : en
  • DE744075C - Method and device for carrying out catalytic gas reactions : de en
  • DE743973C - Electric circuit breakers, in particular switches with arc extinguishing by a flowing pressure medium : de en
  • US2338264A - Badge holding means : en
  • US2338360A - Means for operating doors : en
  • GB558400A - Improvements in gas producers : en
  • FR889372A - Headlight for automobiles : en fr
  • US2338180A - Attendance recorder : en
  • US2338189A - Film mount and method of mounting : en
  • USD136987S - Medallion pin or similar article of manufacture : en
  • FR889303A - Poly-condensation products and their preparation process : en fr
  • FR889288A - Device for casting cylindrical ingots, in particular made of light metal : en fr
  • CA417573A - Shaker conveyer feeder head : en fr
  • FR889246A - Improvements to devices for the color refill of cylinders of printing machines for fabrics, papers and the like : en fr
  • DE743802C - Process for processing roll films in stereo chambers : de en
  • DE743927C - Device for dipping briquettes : de en
  • GB558469A - Improvements in or relating to the electrodeposition of copper : en
  • US2338394A - Humidifier : en
  • US2338335A - Vending machine : en
  • US2338462A - Tire capping machine : en
  • FR889359A - Device for monitoring the operating status of safety devices : en fr
  • DE744071C - Process for reducing foam formation and for foam destruction in fermentation tanks : de en
  • DE746795C - Device for measuring the temperature of rotating or moving bodies : de en
  • US2338228A - Fermentation : en
  • DE744033C - Process for the production of molding compounds from urea or its derivatives and solid polymeric aldehydes : de en
  • DE744048C - Process for degreasing aluminum or magnesium powder : de en
  • GB558432A - Improvements in or relating to electrical resistances : en
  • GB558475A - Improvements in or relating to endless conveyors : en
  • FR889274A - Method and device for repairing worn reamers : en fr
  • DE744035C - Process for the modification of aluminum-silicon alloys : de en
  • FR889345A - Aircraft cabin, with two or more walls : en fr
  • GB558470A - Soft resilient linings for dentures : en
  • FR889260A - Method providing continuous indications for heading lines : en fr
  • DE743865C - Method for determining the friction or abrasion resistance of threads, cords, yarns, ropes, hose braids, etc. like : de en
  • US2338516A - Thianthrene vat dyestuffs and a process of producing the same : en
  • US2338559A - Lighting fixture : en
  • US2338318A - Mounting and guard for rotary cutters : en
  • US2338091A - Screen stencil and method of making same : en
  • US2338380A - Insecticidal composition : en
  • US2338582A - Elevator signaling system : en
  • FR889312A - Process for carbonizing coal agglomerates using sweep gas : en fr
  • US2338605A - Variable speed drive for web feeding apparatus : en
  • US2338209A - Zircon refractory and method of making it : en
  • US2338211A - Collar support : en
  • GB558508A - Apparatus for the cutting and working of sheet metal and other rigid sheet materials : en
  • GB558514A - Improvements in or relating to photographic film rolls : en
  • AU1210543A - Phasing device for synchronous telegraph system : en
  • US2338249A - Disuniting ski bindings : en
  • FR889349A - Method for remotely indicating or automatically fixing the viscosity of a liquid and viscometer for its implementation : en fr
  • FR889376A - Screw Thread Rolling Machine : en fr
  • GB558418A - Process for securing pharmacologically useful products from cannabidiol : en
  • US2338548A - Elastic fluid turbine arrangement : en
  • US2338585A - Process of sweetening petroleum distillates : en
  • US2338458A - Variable resistor : en
  • FR889154A - Beauty cream against freckles : en fr
  • DE750250C - Tools for non-cutting deformation of light metals : de en
  • US2338616A - Excavator bucket : en
  • US2338347A - Helical vent fluid bleeder : en
  • DE743020C - Amplifier stage, in particular to compensate for afterglow in cathode ray scanners : de en
  • US2338338A - Stiffness testing device : en
  • US2338357A - Window operator : en
  • FR889243A - Filter for the air supplying an internal combustion engine : en fr
  • FR889367A - Process for the finishing of fibrous materials of regenerated cellulose : en fr
  • US2338309A - Vehicle body : en
  • US2338479A - Expulsion-type excess-voltage protective device : en
  • US2338579A - Refining mineral oils : en
  • USD136972S - Design for a hat : en
  • FR889377A - Method and device for threading and relief of taps by rolling : en fr
  • FR889368A - Process for manufacturing pressed masses or parts capable of being nailed, in particular shoe heels : en fr
  • DE743782C - Process for the tear-resistant connection of synthetic rubber with solid substrates : de en
  • GB558449A - Improvements in fire hose : en
  • GB558491A - Improved method of and mechanism for effecting correction for undesired variation in the tobacco content or the density of a travelling stream of tobacco, particularly in cigarette manufacture : en
  • DE743928C - Process for the preparation of sulfonated aryl ether esters of polyhydric alcohols : de en
  • FR889363A - Process for manufacturing hollow bodies, in particular for packaging : en fr
  • DE743897C - Compressed gas switch with external gas blowing : de en
  • US2338231A - Aldehyde reaction product of styrene and a polymer : en
  • US2338329A - Molding apparatus : en
  • US2338644A - Plate polishing machine : en
  • DE743910C - Process for the gas- and liquid-tight connection of a metallic part with a ceramic part by soldering : de en
  • DE743762C - Floodable underwater power plant for rivers : de en
  • DE744088C - Loudspeaker system with feedback lock : de en
  • FR889185A - Deep drawn steering cups and methods of making bicycles, tandems or the like : en fr
  • FR889167A - Manufacturing process and improvement of wind nozzles, conduits, or similar parts, subjected to a high temperature : en fr
  • US2338300A - Well pump : en
  • US2338621A - Electric lamp : en
  • USD136960S - Design for a shoe heel : en
  • CA417525A - Container capping machine : en fr
  • CA417569A - Plastic overlay : en fr
  • US2338190A - Linear-dimension gauge or comparator : en
  • US2338251A - Coffee or tea pot : en
  • US2338173A - Printing mechanism : en
  • US2338269A - Method of making glass structures by pressing and blowing operations : en
  • US2338437A - Dental instrument for boring, grinding, and like operations : en
  • US2338439A - Process for the production of white opaque enamels : en
  • US2338298A - Stereocinematography : en
  • US2338206A - Multiplying machine : en
  • US2338651A - Calendar attaching means : en
  • US2338208A - Pole changer : en
  • DE743792C - Attachment of the Luftfuehrungsgehaeuses in air-cooled internal combustion engines with a series of cylinders : de en
  • DE744046C - Process for the production of hard, wear-resistant coatings on aluminum and aluminum alloys : de en
  • CA417566A - Fibre bearing belt connector : en fr
  • US2338570A - Process of electrostatic spinning : en
  • DE743962C - Anti-skid device, in particular for attachment to the rubber pads of caterpillar tracks : de en
  • US2338174A - Treatment of drilling mud : en
  • DE743909C - Protective agent against corrosion of metals : de en
  • DE743783C - Process for the production of shaped, elastic structures from polyvinyl chloride plastics : de en
  • DE743819C - Method for decorating room surfaces with a relief pattern : de en
  • US2338232A - Grave box cover applying and removing tool : en
  • US2338515A - Motor protective device : en
  • DE743820C - Abrasives and polishes : de en
  • US2338156A - Smoke-laden flour and method of producing same : en
  • US2338364A - Safety device for presses : en
  • US2338512A - Telephone transmitter circuit : en
  • US2338198A - Micromill : en
  • DE743854C - Disinfecting method : de en
  • FR889336A - Balance bearing : en fr
  • FR889355A - Aluminum-copper-magnesium alloy : en fr
  • DE744024C - Process for the production of wool-like rayon threads or the like for the production of rayon : de en
  • US2338496A - Heat treating gears and the like : en
  • US2338634A - Oxidation of coal : en
  • DE743823C - Angled rolling mill for the production of thin-walled seamless tubes in particular : de en
  • DE744060C - Device for measuring distances by means of sound waves : de en
  • GB558468A - Control mechanism for needle-eye polishing machines : en
  • FR889396A - Oil film lubricator : en fr
  • US2338324A - Rotary display merchandising system : en
  • US2338522A - Solubilization of petroleum hydrocarbons : en
  • USD136994S - Design for a dress : en
  • DE743844C - Electromagnetic deflection system for electron beam tubes : de en
  • GB558376A - Improvement in suspension filing folder and index tab : en
  • US2338111A - Apparatus and method for constructing graving dry docks : en
  • US2338126A - Fishing reel : en
  • US2338284A - Refrigerator : en
  • GB558382A - Improvements in or relating to electric induction furnaces : en
  • GB558408A - Improvements in and in the manufacture of piston and like packing rings : en
  • FR889392A - Process for the polymerization of 2-chlorbutadiene 1.3. : en fr
  • DE743883C - Flap body for covering retractable aircraft parts, in particular retractable landing gear : de en
  • DE744082C - Process for the production of sintered phosphates : de en
  • US2338593A - Gas-cooled dynamoelectric machine : en
  • DE744061C - Two-for-one twisting spindle : de en
  • DK61785C - The flush cisterns for water closets. : da en
  • FR889254A - Improvements to hedge shears and other similar tools : en fr
  • GB558482A - Improvements relating to frequency discriminating electrical apparatus : en
  • FR889262A - Work holder assembly for machining objects using a gauge : en fr
  • GB558353A - Improvements relating to boiler and the like furnaces : en
  • DE743932C - Arrangement for remote control of heavy objects, especially for rudder controls : de en
  • FR889252A - Device for wax or other modeling : en fr
  • GB558404A - Improvements in or relating to lifesaving waistcoats : en
  • US2338162A - Shock absorber : en
  • US2338345A - Catalytic reactor : en
  • US2338172A - Art of framing pictures, mirrors, and the like : en
  • US2338403A - Starting device for internal combustion engines : en
  • US2338323A - Resilient mounting : en
  • US2338301A - Adjustable cutterhead : en
  • DE746775C - Incandescent cathode for electrical discharge vessels and process for their manufacture : de en
  • USD136959S - Sellmeyer pipe threading machine : en
  • USD136975S - meilicke : en
  • US2338166A - Art of bitumen road-making and the like : en
  • DE746799C - Photoelectric device for controlling the loads on dynamic materials testing machines that change between upper and lower load limits : de en
  • US2338325A - Sextant : en
  • USD136978S - Design for an adjustable curve ruler : en
  • US2338270A - Feed mechanism for machine guns : en
  • US2338573A - Catalytically processing hydrocarbon oils : en
  • US2338421A - Apparatus for unwinding and winding up endless films : en
  • US2338622A - Closure locking device : en
  • US2338169A - Universal joint seal : en
  • US2338332A - Wrist watch band, bracelet, or similar article : en
  • US2338210A - Process for treating expansible plastic tubes : en
  • DE743809C - Device for sealing rotary valves that are used as suction or pressure valves in pumps for conveying thick matter, concrete, etc. : de en
  • FR889375A - Electrical devices for lighting needle beds in cotton knitting machines : en fr
  • US2338505A - Pressure regulating device : en
  • US2338481A - Electric switch for doorjambs : en
  • US2338675A - Coke-oven door : en
  • CA417537A - Electric discharge apparatus : en fr
  • DE744068C - Two-part sleeve protection for drill rods : de en
  • FR889286A - Process for increasing the solubility of ethers-salts of para and meta-hydroxy-benzoic acids : en fr
  • DK61777C - Powder spreading machine, in particular Lime nitrogen. : da en
  • US2338197A - Reticulated metal walkway and method of producing same : en
  • US2338370A - Cement retainer : en
  • FR889225A - Gear shift mechanism : en fr
  • DE744029C - Device to prevent metal from leaking out of the sprue of pivotable casting molds in the end position of the mold : de en
  • FR889206A - Underside bodice : en fr
  • CA417607A - Colour printing method and machine : en fr
  • DE743760C - Converters for high voltages with chokes in the direct current lines : de en
  • DE743810C - Flywheelless piston pump driven by a compressed air motor : de en
  • DK61770C - Electric Discharge Tube with Screen Grille and Capture Grille. : da en
  • US2338419A - Filtering and like treatment of fluids : en
  • US2338153A - Foundry plant : en
  • US2338393A - Dual wheel assembly : en
  • GB558479A - Improvements in fuel injection systems for internal combustion engines and injection pumps for use therein : en
  • USD136993S - Design for a dress : en
  • FR889249A - Replacement product for pepper essence : en fr
  • DE743954C - Process for achieving usable power output : de en
  • DE743996C - Process for the production of surface-active substances from pyridine and its homologues : de en
  • FR889256A - Distributor of powdery materials and in particular soap powder : en fr
  • FR889365A - Gasifier for all engines : en fr
  • FR889238A - Sulfur dyes and their production process : en fr
  • US2338302A - Propeller hub : en
  • US2338303A - Knife rack : en
  • US2338433A - Salt bath for heating soldering irons : en
  • US2338639A - Manufacture of azo dyestuffs : en
  • DE743834C - Shut-off device, especially for steam drains : de en
  • DE743983C - Shooting and conveying processes for coal or ore : de en
  • US2338540A - Welder control system : en
  • US2338494A - Reaction product of aldehydes and triazine derivatives : en
  • FR889399A - Process for producing basic and covering enamels, preferably boron-free or low-boron enamels : en fr
  • CA417514A - Oblique helicoid spiral cutter manufacture : en fr
  • US2338131A - Selector apparatus : en
  • US2338412A - Amplitude limiting circuits : en
  • DE743923C - Edging and sliding device for rolling stock : de en
  • US2338541A - Lighting fixture : en
  • GB558477A - Improvements in or relating to pumps : en
  • US2338428A - Claw coupling with synchronizing device : en
  • USD136992S - Design for a dress : en
  • DE743950C - Centrifugal compressor for internal combustion engines : de en
  • GB558438A - Improvements in or relating to couplings for fluid conduits : en
  • GB558452A - Improvements relating to photographic materials : en
  • US2338482A - Process for producing n-substituted aminophenols : en
  • US2338583A - High vacuum : en
  • US2338186A - Knurling device : en
  • US2338404A - Integrated machine control : en
  • US2338304A - Armored conductor structure : en
  • US2338544A - Fluid translating apparatus : en
  • US2338430A - Process of producing nonyellowing phenol-formaldehyde condensates : en
  • US2338545A - Speed control system : en
  • DE743933C - Process for the production of electrical capacitors, which consist of a number of alternately stacked metal and dielectric layers, which are clamped between two rigid plates and housed in a pressed-around housing : de en
  • FR889362A - Solvent, softening and gelatinizing product for plastics : en fr
  • US2338391A - Apparatus for producing preshrune fabrics : en
  • GB558388A - Improvements in or relating to domestic sinks : en
  • US2338592A - Can punch : en
  • US2338520A - Heat insulating panel : en
  • US2338253A - Game or recreation table : en
  • US2338369A - Well tester : en
  • FR889169A - Explosion or compressed air engine, with opposed fixed pistons and integral mobile internal cylinders, and its distribution and discharge system : en fr
  • GB558517A - Improvements in or relating to apparatus for conveying and delivering articles : en
  • DE746914C - Device for the production of a draftable sliver from endless synthetic fibers : de en
  • FR889247A - Installation for cooling or heating materials, and in particular cement clinker : en fr
  • US2338297A - Process for polymerizing trichlorethylene : en
  • US2338440A - Fire-extinguishing and preventing system for motor vehicles : en
  • CA417550A - Discharge device starting and controlling apparatus : en fr
  • USD136990S - Design for a dress : en
  • US2338378A - Black-out window shade : en
  • CA417606A - Vapour impervious container : en fr
  • CA417593A - Optical image recording apparatus : en fr
  • US2338138A - Gluing mechanism for box-making machines : en
  • US2338192A - Closure device for handholes or openings : en
  • US2338154A - Fluid-cooled dynamoelectric machine : en
  • US2338416A - Film-forming composition : en
  • US2338471A - Vise : en
  • US2338295A - Heating of fluids : en
  • DE743796C - Device to limit the feed for the slide of a machine tool : de en
  • DK61783C - Grenade Launcher or Mortar. : da en
  • US2338473A - Method of and apparatus for producing glass fibers : en
  • GB558466A - Improvements in or relating to dummy smallarms for training in the use of automatic weapons : en
  • US2338196A - Production of viscose : en
  • US2338411A - Bee comb foundation : en
  • USD136966S - Toy airplane or similar article : en
  • US2338606A - Transferring subdivided solids : en
  • US2338200A - Mounting for telescopic sights : en
  • US2338499A - Bug manufacture : en
  • USD136977S - Combined sponge cup and sponge : en
  • US2338600A - Selective solvent for olefins : en
  • US2338132A - Wrapping paper cutting and feeding mechanism : en
  • US2338483A - Propeller control : en
  • US2338306A - Electron discharge device : en
  • AU117989B2 - Improved means for spreading flax on fields to promote retting and thereby to render the flax suitable for further processing in mills : en
  • US2338525A - Synchronous motor : en
  • US2338409A - Connection for carbon segments of collectors : en
  • US2338379A - Control mechanism for aircraft : en
  • CA417603A - Magnetic chuck work-holding plate : en fr
  • CA417562A - Cellulosic textile material processing : en fr
  • US2338348A - Drying machine : en
  • US2338371A - Process for sweetening light hydrocarbon oils : en
  • US2338258A - Continuous conveyer : en
  • US2338261A - Means for cutting and coating cardboard or other sheet material : en
  • GB558356A - Improvements in and relating to bonding veneers made of wood or other materials : en
  • DE744087C - Negative AC resistance : de en
  • DE744036C - Electromagnetic force meter : de en
  • DE744042C - Internal combustion engine with liquid piston : de en
  • CA417598A - Fatty compound refining process : en fr
  • DE744001C - Electric brake circuit for sidecar : de en
  • FR889157A - Cooker : en fr
  • DE743984C - Method and device for ventilating water : de en
  • CA417496A - Sterilization method by ultra-violet rays : en fr
  • CA417559A - Time delay device : en fr
  • US2338168A - Typewriter ribbon spool : en
  • US2338618A - Coke oven structure : en
  • US2338609A - Fluid meter : en
  • US2338450A - Liquid fuel tank for aircraft : en
  • USD136946S - Design fob a measuring ruler or similar article : en
  • DK61764C - Signal device for railway safety systems. : da en
  • FR889250A - Device for automatic firearms : en fr
  • CA417543A - Thermal demand wattmeter : en fr
  • CA417608A - Rotary kiln fire ring removing apparatus : en fr
  • US2338424A - Limb guard : en
  • US2338539A - Material unwinding device : en
  • DE743863C - Process for the production of high molecular weight phenols : de en
  • DE743919C - Double walled sweater : de en
  • CA417529A - Fluid supply system : en fr
  • FR889308A - Stripper device : en fr
  • US2338551A - Automatic volume control : en
  • DE744030C - Continuous casting process for the production of blocks, in particular from light metal : de en
  • DE744063C - Plugs for filling boreholes for blasting purposes : de en
  • FR889182A - Tire tire for vehicles : en fr
  • FR889335A - Bearing for watch balance : en fr
  • US2338693A - Clutch and transmission : en
  • FR889296A - Process for facilitating the spreading of layers of hydrophilic colloids, applicable in particular to the manufacture of photographic products : en fr
  • GB558472A - Improvements in or relating to the joining of wires particularly fine wires used in the manufacture of electric coils : en
  • FR889176A - Methods and devices for the cooperation of signal waves and pilot waves in the bonding of wire networks by ether : en fr
  • FR889369A - Expansion degasser, to extract air and gas from the feed water of steam plants : en fr
  • FR889230A - Adjuster for additional air from carburetors : en fr
  • GB558364A - Improvements in or relating to unloading and loading apparatus : en
  • DE743893C - Device to prevent possible damage caused by the alternating current self-excitation occurring in alternating current regenerative braking circuits : de en
  • FR889196A - Separator device with automatic bleeder for elastic or other fluids : en fr
  • GB558509A - Improvements in or relating to label or tag stringing machines : en
  • DE742675C - Open spiral channel for pouring molten metal : de en
  • DE743806C - Circuit for stereo recordings and fluoroscopy in the X-ray procedure : de en
  • FR889205A - Peat treatment process : en fr
  • DE743979C - One-hand double valve for welding, cutting and soldering torches : de en
  • US2338273A - Spray nozzle : en
  • DE743912C - Photoelectric shutter for photographic cameras : de en
  • DE743890C - Sash adjustment device : de en
  • FR889261A - Camera with removable magazine : en fr
  • US2338623A - Burner structure : en
  • GB558501A - An improved interval mether and indicator therefor : en
  • DE743707C - Device on internal combustion engines, in particular vehicle engines, for changing the composition of the fuel-air mixture : de en
  • DE743943C - Method and device for producing core sand : de en
  • DE744952C - Method of applying the solder when brazing aluminum and aluminum alloys : de en
  • DE743993C - Process for the production of printing patterns with water-insoluble organic dyes on textile surface structures made of cellulose fibers with parchment of the printed areas : de en
  • FR889203A - Wagon pusher device : en fr
  • FR889371A - Insulating panel for metallic aircraft that can be placed on the inside of the cabin : en fr
  • DE743880C - Canning jar : de en
  • US2338485A - Electrical terminal and method of making it : en
  • US2338647A - Fish scaler : en
  • DE744078C - Process for the production of hydrocarbons by caroxide hydrogenation : de en
  • FR889159A - The inexpensive oil-based mayonnaise-salad dressing prepared with premium nutrients: Ticino : en fr
  • US2338658A - Temporary holding device for conduit clips : en
  • FR889337A - Improvements to multiple indicator systems for aerial devices : en fr
  • FR889294A - Image reproduction tube : en fr
  • GB558358A - Improvements in or relating to contact or converters : en
  • DE743822C - Process for producing and improving beer foam : de en
  • US2338093A - Kelly rod and drive bushing therefor : en
  • US2338668A - Shutter release : en
  • US2338376A - Separating the cocoa seed from the cocoa bean : en
  • DE743860C - Process for the production of solid alkali metal salts in powder or grit form of polymethacrylic acid or copolymers containing such : de en
  • GB558451A - Improvements in or relating to apparatus for loading wheeled vehicles and stocking-out material unloaded therefrom : en
  • US2338140A - Method for making coffeee : en
  • US2338214A - Locomotive : en
  • US2338523A - Screen cloth tightening means : en
  • US2338113A - Bottle carrier and separator therefor : en
  • US2338649A - Screen : en
  • US2338671A - Photographic printing apparatus : en
  • USD136976S - Baby s nursing bottle or similar article : en
  • DE743960C - Swivel arm mount for automatic firearms in aircraft with a swivel arm that can be fixed in the rest position of the weapon on a locking device : de en
  • FR889378A - Cane maker : en fr
  • US2338457A - Process for preparing starch products : en
  • US2338121A - Milling machine transmission and control mechanism : en
  • USD136950S - Design for a child s play wagon : en
  • DE744027C - Method and device for the simultaneous filling of many ampoules in an airtight, lockable filling container : de en
  • GB558499A - Apparatus for transporting, lifting and discharging loads : en
  • DE743891C - Wind power plant with friction rollers for driving machines with higher speed : de en
  • US2338614A - Lens : en
  • CA417536A - Electric discharge apparatus : en fr
  • FR889307A - Simplified letter : en fr
  • US2338405A - Protective system : en
  • US2338272A - Treatment of hydrocarbons : en
  • DK61768C - Swivel switch with pressure rollers. : da en
  • DK61773C - Cover for Whistle Boilers. : da en
  • FR889350A - Method and device for improving and controlling the weld line on longitudinally welded pipes : en fr
  • US2338115A - Process of oxidizing uronic acids : en
  • FR889291A - Machine for searing and continuous drying of long and short pasta : en fr
  • US2338486A - Compressor unloader : en
  • DE744014C - Process for the production of structural parts made of carbon or graphite for electrical discharge vessels, in particular short-wave tubes : de en
  • US2338328A - Anchor for use in veneering concrete structures : en
  • DE743976C - Process for the surface treatment of writing or drawing pens set in wood : de en
  • GB558424A - Improvements in or relating to thermal switches particularly for starting electric discharge lamps : en
  • US2338119A - Process for the production of hydrocarbon oils : en
  • US2338608A - Beverage preparation : en
  • US2338110A - Graving dry dock and method of construction : en
  • CA417499A - Hair waving method : en fr
  • US2338103A - Gelatinized seed bearing cord : en
  • US2338488A - Rear-vision device : en
  • DE743896C - High voltage alternating current electrical switch : de en
  • FR889209A - Wood gasifier installation : en fr
  • DE744005C - Overcurrent release : de en
  • GB558471A - Improvements in or relating to electric alarm signals and the like : en
  • FR889357A - Process for manufacturing sintered magnets using pulverized scrap of magnetic steels based on fe-al-ni : en fr
  • FR889339A - Clip for shaking lanes : en fr
  • CA417605A - Damping device for electric instruments : en fr
  • FR889228A - Preparations based on dyes for dyeing and printing textiles : en fr
  • GB558474A - Improvements in and relating to collapsable tubes or containers : en
  • FR889311A - Multi-speed gearbox : en fr
  • GB558440A - Improvements in or relating to window and ventilating arrangements for concrete buildings : en
  • FR889170A - Automatic adjustment and closure of carbonization operations in direct heating and natural draft furnaces : en fr
  • FR889269A - Auxiliary device for internal combustion engines, in particular for engines mounted on motor vehicles : en fr
  • GB558370A - Art of producing magnetic material : en
  • DE744020C - Process for the production of paints : de en
  • FR889302A - Process for manufacturing a moldable material, material obtained by this process and molded parts made from this material : en fr
  • US2338574A - Pressure responsive apparatus for detection or control of ice or for other purposes : en
  • FR889316A - Gas pressure gun loading device : en fr
  • DE744034C - Silver alloys : de en
  • FR889271A - Protection process for light metal surfaces : en fr
  • GB558431A - Improvements in or relating to sewing machines : en
  • US2338575A - Coin handling and totaling device : en
  • US2338242A - Line identification : en
  • US2338341A - Boat : en
  • US2338353A - Bobbin for winding thread on fish lures : en
  • FR889300A - Method and device for switching the heating power of an electric oven monitored by a temperature regulator : en fr
  • DE743797C - Solo register for piano hand harmonics : de en
  • CA417575A - Carrier-signal detector : en fr
  • GB558387A - Improvements in or relating to resilient suspension devices for vehicle wheels : en
  • US2338442A - Automatic working up of photographic papers and films : en
  • US2338563A - Thermostatic element : en
  • FR889153A - Consumed : en fr
  • US2338087A - Collar protecting hood and spray dampener for presses : en
  • US2338089A - Active contact mass : en
  • US2338381A - Method of assembling lead-in conductors for vacuum tubes : en
  • DE743925C - Method and machine for the production of barbed wire : de en
  • DE743982C - Ventilation with mountain heat discharge : de en
  • US2338081A - Cleaning apparatus for cylinder heads : en
  • US2338584A - Injection valve : en
  • USD136963S - Embroidered trimming or similar article : en
  • DE744007C - Screw cap for electrical fusible links : de en
  • USD136965S - Design for a jodhpur : en
  • DE743779C - Method for obtaining bee venom : de en
  • US2338638A - Take-off mechanism for looms : en
  • US2338663A - Hypo eliminator solution : en
  • FR889314A - multi-part building element, and method of manufacturing the same : en fr
  • US2338319A - Fuel feed control : en
  • US2338467A - Channeled metallic structure : en
  • FR889346A - Terminal for electrical connectors, switches or circuit breakers : en fr
  • GB558429A - Electron discharge device : en
  • GB558357A - Improvements in or relating to power driven wringers : en
  • DE743935C - Heating element with glow coil for electric stoves and hotplates : de en
  • FR889184A - Perforated plates for light electric accumulators, and their method of obtaining : en fr
  • DE743886C - Device for remote display of angular positions : de en
  • CA417604A - Damping device for electrical instruments : en fr
  • FR889315A - Acid and heat resistant steel : en fr
  • CA417510A - Reinforced cinder pot : en fr
  • US2338533A - Mechanical motion : en
  • US2338215A - Gearless differential : en
  • DE743900C - Lamellar ring for external or internal collectors of electrical machines and devices : de en
  • US2338591A - Shot blasting apparatus : en
  • US2338260A - Carton, including pouring means : en
  • US2338094A - Metal container : en
  • US2338336A - Cathode-ray tube and process : en
  • US2338426A - Educational apparatus : en
  • US2338599A - Machine tool : en
  • CA417556A - Refrigerator system charging method : en fr
  • US2338385A - Binding clamp to hold lines wound onto rolls : en
  • US2338490A - Method of decorating fabrics : en
  • US2338188A - Record controlled machine : en
  • US2338654A - Projection screen : en
  • FR889386A - Advanced process for the production of unsaturated carburized hydrogen : en fr
  • CA417568A - Surface metal removing apparatus and metal body produced : en fr
  • USD136948S - Design for. a noise making toy gun : en
  • CA417579A - Relay commutator : en fr
  • US2338118A - Inverter : en
  • US2338615A - Mixing device : en
  • US2338230A - Composition of styrene and a polymer : en
  • DE743852C - Process for reducing the viscosity of viscose : de en
  • DE744094C - Process for group-wise remote control of devices via a special control line : de en
  • US2338420A - Arrangement for adjusting the blades of opposite rotating air propellers : en
  • US2338502A - Brake : en
  • US2338287A - Medicated inhaler and cigarette charger : en
  • US2338254A - Valve bag : en
  • DE743868C - Sorting machine for registration cards : de en
  • DE743948C - Device for detecting corrosion on insulated pipes, containers, etc. Like., In particular in refrigeration systems : de en
  • US2338164A - Explosive composition : en
  • US2338384A - Dichloroethyl ether extraction process : en
  • US2338562A - View-transmission system : en
  • CA417580A - Printing mechanism : en fr
  • DE743985C - Substitute for fermentation fat : de en
  • US2338170A - Stencil addressing machine : en
  • US2338406A - Two-stroke engine : en
  • US2338429A - Synthetic resin : en
  • US2338372A - Method for conditioning well bores : en
  • US2338685A - Process of bending grainless lignocellulose fiberboard : en
  • DE744091C - Process for the removal, repair or testing of parts arranged in an oil-filled housing of an electrical device, such as insulators or contacts : de en
  • DK61774C - Protective sleeve for barrels, dishes or similar containers for foodstuffs. : da en
  • US2338289A - Piercing and shearing tool : en
  • US2338509A - Grinding machine : en
  • DE743888C - Process for the production of a concrete hardening aggregate : de en
  • DE743913C - Raw block glued together from thick, intended for wooden single and adjustable wings of propellers : de en
  • AU1252744A - Improvements in and relating to holders for thermionic valves andother electric devices : en
  • US2338175A - Blast furnace : en
  • US2338314A - Rotary weed eradicator and harrow : en
  • US2338628A - Focal plane shutter control : en
  • US2338664A - Sheet material, particularly photographic film : en
  • FR889248A - Printer or photographic enlarger with a device for spectral variation of the printing light : en fr
  • CA417549A - Aldehyde and triazine derivative reaction product : en fr
  • CA417597A - Machine gun cartridge feed-belt : en fr
  • DE743862C - Process for the production of lightweight panels : de en
  • US2338288A - Card forming and perforating apparatus : en
  • USD136985S - Design for a medal or similar article of manufacture : en
  • US2338503A - Control system for paper machines : en
  • CA417521A - Co2-butter manufacture : en fr
  • FR889306A - Wrench for inserting cylindrical inner liners into cylinder blocks of internal combustion engines : en fr
  • DE743894C - Mercury switch : de en
  • US2338489A - Typing machine for preparing matter for printing : en
  • US2338244A - Motor vehicle : en
  • US2338571A - Pkocess of purifying j-picoline : en
  • US2338630A - Means for use in laying concrete pathways and the like : en
  • US2338147A - Stabilizing system for ships : en
  • US2338158A - Oil clarifier : en
  • US2338410A - Push-pull amplifier : en
  • US2338624A - Elevating mechanism for machine tool knees : en
  • US2338580A - Water base paint composition : en
  • CA417553A - Copper oxide rectifier : en fr
  • CA417572A - Armature assembling machine : en fr
  • DE743881C - Assembly method for power-operated aircraft parts forming with the aircraft body transmission, z. B. Retractable landing gears : de en
  • FR889391A - Head reinforcement, without sealant, for cable heads : en fr
  • DE743764C - Electric light for low voltage : de en
  • DE743536C - Process for the color development of photographic silver halide emulsions : de en
  • US2338296A - Carving rack : en
  • FR889255A - Process for joining metals with natural or artificial rubber : en fr
  • DE743966C - Weighting mold body for foundations u. like : de en
  • FR889187A - Improvements to bolts for cycles and others : en fr
  • FR889204A - Protection of electrical devices against overvoltages : en fr
  • US2338240A - Refrigerating apparatus : en
  • DE743949C - Seed dressing machine : de en
  • FR889275A - : fr
  • DE743768C - Process for dissolving fossil resins : de en
  • US2338443A - Superpolyamides and process of producing same : en
  • USRE22415E - Method for cooling fluid catalysts : en
  • GB558367A - Improvements in turbines : en
  • GB558369A - Improvements in fusible cut-outs : en
  • GB558421A - Improvements relating to the joints of walls, roofs and the like constructed from panels or slabs and means for covering such joints : en
  • US2338632A - Corn planter : en
  • GB558410A - Improvements in and relating to metal-to-porcelain seals : en
  • US2338083A - Salad dressing : en
  • DE744093C - Control devices for follow-up controls designed to be placed in a cabinet : de en
  • DE743585C - Dimensioning specification to achieve optimal efficiency for an image scanning tube with a semiconductor image cube electrode : de en
  • CA417512A - Valve body : en fr
  • US2338267A - Article timing device : en
  • FR889253A - Improvements to push-in tools : en fr
  • DE743821C - Flame mouthpiece : de en
  • FR889385A - Process for the production of unsaturated carburized hydrogen : en fr
  • FR889389A - System enhancements to prevent rolling mill rolls from failing : en fr
  • US2338219A - Fire screen : en
  • US2338350A - Hydraulic control mechanism : en
  • US2338531A - Resistor : en
  • US2338655A - Process for the manufacture of furfuryl amines : en
  • DE743921C - Sheet rolling mill : de en
  • USD136968S - Design for an ash tray : en
  • CA417547A - Motor control system : en fr
  • FR889192A - : fr
  • DE743958C - Process for the waste-free production of metal objects provided with openings : de en
  • GB558496A - An improved system and apparatus for signalling on traction systems : en
  • US2338262A - Acoustic horn : en
  • US2338431A - Device for transmitting the lateral rotation of guns to predictors : en
  • DE743773C - Mouth mirrors for dental treatment work : de en
  • DE744009C - Arrangement to improve the operation of ignition pin vessels connected in parallel in opposite directions, which serve to protect against overvoltages : de en
  • FR889361A - Process for obtaining stereoscopic views and views obtained by this process : en fr
  • DE743836C - Key button, especially for typewriters : de en
  • GB558396A - Improvements in rollers for domestic washing, wringing and mangling machines : en
  • GB558447A - Improvements relating to loom shuttles : en
  • US2338451A - Compressor control : en
  • USD136949S - Design for an electric fence post : en
  • US2338363A - Apparatus for ventilating railroad cars : en
  • USD136964S - Embroidered trimming or similar article : en
  • DK61765C - Resistance-coupled Amplifier for Televisions. : da en
  • USPP612P - Carnation plant : en
  • DE743963C - Circuit arrangement for achieving an acoustic signal, e.g. B. the air raid warning signal, corresponding ascending and descending tones using a grid-controlled gas discharge tube : de en
  • FR889162A - Quartz filters at acoustic frequencies : en fr
  • US2338235A - Method of making puncture sealing inner tubes : en
  • DE743957C - Control for copy milling machines : de en
  • GB558412A - Improvements relating to lathe or like machine tool collets : en
  • GB558504A - An improvement in or relating to differential mechanism : en
  • DE743825C - Process for the production of leather substitute materials, artificial leather, leather cloths, top materials, balloon materials or floor covering materials made of polyamides : de en
  • DK61769C - Electric Machine for Handling, especially a Condenser Motor for Dry Shavers. : da en
  • DE744086C - Circuit arrangement for regulating the gain of a discharge tube : de en
  • FR889219A - Advanced metal cap for closing bottles : en fr
  • GB558392A - An improved variable-speed gear mechanism : en
  • US2338452A - Insulation for cold-storage rooms : en
  • US2338603A - Pressure supporting mechanism : en
  • DE743675C - Process for the production of indigoid dyes : de en
  • DE743872C - Electromagnetic switching device, especially for fuel pumps : de en
  • DE744098C - Protective circuit with a protective conductor against breakage of the protective conductor and line short circuit : de en
  • CA417565A - Oil well belt connector : en fr
  • CA417601A - Hydrocarbon formation from olefins and iso-olefins : en fr
  • CA417508A - Shoe tree : en fr
  • US2338216A - Signaling system : en
  • CA417577A - Electric lamp socket : en fr
  • AU128829B2 - Arrangement for speed-compounding ofa three-phase generatorcascade as prime mover ofan asynchronous audio-frequency generator : en
  • US2338636A - Automatic billing system : en
  • US2338465A - Suction roll : en
  • USD136988S - Design for a dress xp : en
  • DE743814C - Self-steering for aircraft : de en
  • DE744059C - Angle transmission with display through a Braun tube : de en
  • US2338643A - Geochemical prospecting : en
  • CA417540A - Electric plug receptacle : en fr
  • US2338475A - Production of hydrocarbons : en
  • US2338389A - Filling and venting structure : en
  • US2338477A - Filing cabinet : en
  • US2338598A - Aerial parachute bomb : en
  • CA417558A - Transformer connection for protective devices : en fr
  • US2338692A - Radiotelegraph recording device : en
  • DE743781C - Device for securing rucksack straps and other straps : de en
  • CA417527A - Measuring system : en fr
  • DE744031C - Process for the production of double or multiple metal workpieces : de en
  • FR889235A - Process for keeping the surfaces of heat exchangers clean : en fr
  • US2338401A - Garment carrying frame : en
  • GB558473A - High frequency loop type antennae : en
  • US2338182A - Regenerated cellulosic film : en
  • DE743853C - Detachable joint for surgical instruments or the like. : de en
  • US2338382A - Psychrometrically controeled jur : en
  • US2338441A - Ultra high frequency cable : en
  • FR889284A - Photographic lens : en fr
  • FR889266A - Process for improving textiles : en fr
  • FR889351A - Method of manufacturing cement concrete blocks and devices for implementing said method : en fr
  • FR889380A - Photographic lenses : en fr
  • US2338321A - Method of electropolishing steel : en
  • US2338474A - Thermostat : en
  • GB558453A - Improved construction of guide passages for ammunition belts for machine guns : en
  • DE743790C - Self-seller for electricity, gas or water : de en
  • US2338248A - Alkylation of isoparaffinic hydrocarbons : en
  • DE743911C - Edging for mesh to be stretched : de en
  • GB558512A - Facsimile recording system and apparatus : en
  • FR889178A - Tanning process combined with chromium and iron and the materials used in the implementation of this process : en fr
  • FR889373A - Washing, fulling and cleaning agents : en fr
  • DE744084C - Periodically acting absorption refrigeration machine : de en
  • GB558503A - A device for forming tabs upon strips of adhesive tape : en
  • US2338250A - Electric controlling apparatus : en
  • DE743889C - Reusable slide for acute-angled pipe branches : de en
  • GB558375A - Improvements in seals for antifriction bearings : en
  • CA417592A - Cathode making machine : en fr
  • DE744008C - Spark gap for surge arrester : de en
  • CA417497A - Door closing device : en fr
  • DE744045C - Process for electroplating zinc and zinc alloys : de en
  • DE744057C - Device for monitoring power systems, in particular diesel systems on vehicles : de en
  • FR889172A - Fancy yarn imitating wool and how it is obtained : en fr
  • FR889309A - Flame protectors for gasifiers : en fr
  • FR889342A - Zinc electrolytic deposition process and deposits obtained by this process : en fr
  • FR889156A - Parallel control device for tools for performing dental work : en fr
  • DE743965C - Wet fine spinning process : de en
  • US2338346A - Apparatus for catalytic conversion reactions : en
  • GB558434A - Improvements in or relating to apparatus for radiant heat treatment of flexible sheet material : en
  • US2338097A - Controller for industrial trucks : en
  • GB558374A - Improvements in apparatus for use in testing gyroscopic instruments : en
  • US2338351A - Boring machine : en
  • DE743895C - Mercury switch : de en
  • US2338104A - Adjustable shoe tree : en
  • US2338602A - Fabrication of wet-strengthened papers : en
  • US2338259A - Mushroom spawn and substrate therefor : en
  • CA417513A - Pipe obstructing device : en fr
  • US2338171A - Heat treatment of cast-iron rolls : en
  • US2338472A - Isomerization of hydrocarbons : en
  • US2338469A - Polyamide : en
  • DE743812C - Centrifugal pump with an impeller that is preferably supported on one side in a cylindrical support bearing : de en
  • DE743964C - Apron stretching system with a pull-through roller that depresses the apron in a trough shape : de en
  • DE744096C - Device to prevent false triggering of protective devices when inductive system parts are switched on : de en
  • CA417533A - Heat treatment for metal sleeves : en fr
  • US2338116A - Milling machine : en
  • US2338135A - Diaphragm pessary introducer : en
  • DE743777C - Dismountable sledge, especially for rescuing skiers who have had an accident in the mountains : de en
  • US2338204A - Machine for equipping box parts with fastening means : en
  • US2338179A - Cable terminal housing : en
  • US2338082A - Pail handle : en
  • US2338524A - Method of making electrical terminal fixtures : en
  • CA417494A - Game apparatus : en fr
  • US2338223A - Refrigeration : en
  • US2338299A - Armored conductor structure : en
  • US2338239A - Electrical energy generating system : en
  • CA417519A - Tooth powder dispenser : en fr
  • USD136971S - Camera or similar article : en
  • US2338365A - Switch assemblage : en
  • US2338695A - Electrical testing apparatus : en
  • CA417526A - Bottle cap adhesive heating method : en fr
  • DE743906C - High frequency melting furnace : de en
  • FR889352A - Propeller adjuster : en fr
  • DE749633C - Process for the production of a material suitable for processing on cardboard and furfural from straw : de en
  • US2338694A - Electrical measuring instrument : en
  • US2338145A - Line supporting clip : en
  • US2338660A - Conduit supporting block and bracket therefor : en
  • US2338356A - Air heating apparatus and system : en
  • US2338564A - Turnstile antenna : en
  • US2338123A - Control apparatus : en
  • DE743951C - Fully shielded spark plug : de en
  • FR889207A - Three-phase current adjustment switches by varying the number of turns and star-delta coupling : en fr
  • US2338478A - Independent wheel suspension : en
  • US2338552A - Child's garment : en
  • US2338268A - Composition of matter and process of producing chlorine dioxide : en
  • US2338205A - Overhead door construction : en
  • US2338435A - Gain fixture for poles : en
  • DK61778C - Device for Engines powered by Generator Gas. : da en
  • CA417563A - Thread and filament production : en fr
  • DE743214C - Device for automatic lateral shifting of a shearing machine opposite the associated creel : de en
  • DE743904C - Device for the ignition of an electric gas or vapor discharge tube : de en
  • DE749593C - Switching and machine arrangement for generating continuously controllable active and reactive resistances of any sign : de en
  • US2338686A - Connection for thin wall tubing : en
  • GB558380A - Improvements in or relating to lathes for profiling the interior of hollow bodies : en
  • US2338530A - Tool aligning and guiding device : en
  • FR889257A - Multi-chamber settling plant : en fr
  • GB558383A - Moulded concrete and like blocks and reinforcing units for the same : en
  • US2338448A - Holder and applicator for antiseptics : en
  • FR889387A - Automobile or similar vehicle with a separable and continuous airfoil bearing surface : en fr
  • DE744079C - Process for the production of fatty acids from raw paraffins : de en
  • GB558457A - Apparatus for the manufacture of hollow staybolts : en
  • GB558411A - Improvements relating to hoes : en
  • GB558390A - Improvements in, or relating to, the manufacture or production of articles from powdered material : en
  • GB558395A - Improvements in or relating to ship's or boat's propellers : en
  • US2338252A - Decorating composition for textiles : en
  • US2338688A - Cleaning composition : en
  • US2338438A - Apparatus for coating sheet metal : en
  • US2338642A - Testing and signaling system : en
  • DE743907C - Process for the production of glass objects that diffusely scatter the light, in particular incandescent lamp bulbs, cover bells, lighting glasses and the like. like : de en
  • GB558362A - Improvements relating to moulds for casting metal billets and the like : en
  • DE743824C - Elastic roller : de en
  • GB558361A - Improvements relating to the oxidation of sterols : en
  • GB558397A - Improvements in or relating to wheels for land and road vehicles : en
  • FR889280A - Large aperture lens : en fr
  • GB558381A - Improvements in or relating to contactor converters : en
  • US2338312A - Stoker : en
  • GB558409A - Improvements in and relating to milling cutters : en
  • DE743887C - Method for filtering out sound impulses from an interfering noise for the echo sounding of aircraft : de en
  • CA417548A - Dynamo-electric machine protective system : en fr
  • GB558365A - Improvements relating to electric push-button switches : en
  • GB558433A - New anthraquinone dyestuffs : en
  • GB558507A - An improved grain drying apparatus : en
  • GB558462A - Improvements in and connected with flameproof electric motors : en
  • US2338408A - Making phosphoric acid of high purity : en
  • FR889331A - Oil fired water tube marine boiler : en fr
  • US2338577A - Fish lure : en
  • US2338100A - Blind landing equipment : en
  • US2338224A - Dual wheel assembly : en
  • US2338637A - Polyamine-aldehyde condensation product and its production : en
  • DE743771C - Storage device, especially for dental tools : de en
  • DE743800C - Lens mount for photographic apparatus : de en
  • US2338542A - High frequency amplifying system : en
  • US2338537A - Hardness testing machine : en
  • US2338327A - Perforating apparatus : en
  • US2338202A - Wire testing apparatus : en
  • US2338088A - Bag sorting apparatus : en
  • US2338650A - Spraying device : en
  • US2338234A - Evaporation of transparent material on glass : en
  • US2338397A - Container for liquids and granular substances : en
  • FR889220A - Cannetière : en fr
  • GB558486A - Improvements relating to directional radio apparatus : en
  • US2338669A - Hydrocarbon oil containing organic polysulphides as oxidation inhibitors : en
  • FR889181A - Automatic cleaning device for rewinding machines : en fr
  • DE743840C - Circuit arrangement for transmissions with low transmission damping at the ends of connecting lines in telephone systems with dialer operation : de en
  • US2338143A - Apparatus for handling strip metal : en
  • US2338285A - Turnover device : en
  • US2338538A - Glass-to-metal seal : en
  • CA417571A - Wire coil winding machine : en fr
  • US2338105A - Adjustable shoe tree : en
  • US2338199A - Deflector : en
  • DE743749C - Process for the preparation of a lactone-like derivative of 9,10-dihydroanthracene : de en
  • DE743841C - Device for speed control by brush displacement of alternating current collector machines : de en
  • DE743968C - Railway axle bearings for circulating lubrication with upper and lower shells : de en
  • US2338422A - Film treating machine : en
  • FR889227A - Gear shift mechanism : en fr
  • FR889325A - Method and device for drying telephone cables by means of an electric current : en fr
  • FR889174A - Improvements to rotating tips for machine tools in general : en fr
  • DE743801C - Snapshot setting device for photographic lenses : de en
  • DE743980C - Schraem device for driving underground tunnels, especially drainage tunnels : de en
  • CA417581A - Telephone system time and fee calculating equipment : en fr
  • FR889258A - Settling plant : en fr
  • DE743772C - Use of traveling anodes to produce galvanic coatings on dental prostheses in the mouth : de en
  • DE743838C - Circuit arrangement for compensating the even harmonics of one or more single amplifier stages : de en
  • FR889301A - Device for producing the operating voltages required for ultra-microscopes : en fr
  • US2338137A - Mortar flare shell : en
  • US2338181A - Switching mechanism : en
  • US2338456A - Method of preparing bales : en
  • USD136969S - Design for a shoe bottom : en
  • CA417522A - Hydrocarbon processing : en fr
  • DE744097C - Test circuit for a protective relay device : de en
  • US2338133A - Sorting apparatus : en
  • US2338334A - Hitch device : en
  • USPP611P - Azalea plant : en
  • US2338159A - Needle threader : en
  • FR889239A - Poly-condensation products and their preparation process : en fr
  • USD136970S - Reversible multipilament lamp bulb : en
  • CA417599A - Bitumen adhesivity improving method : en fr
  • US2338597A - Submarine rescue and escape mechanism : en
  • FR889297A - Improved process for the preparation of dye and sensitizing dye intermediates for photographic emulsions : en fr
  • DE743989C - Spin dryer : de en
  • FR889236A - safety razor case : en fr
  • DE743867C - Stitch counter, especially for very high speeds : de en
  • FR889186A - Method of shaping the front panel of knitted ties and resulting new product : en fr
  • US2338096A - Dusting machine : en
  • US2338613A - Lubricant : en
  • GB558461A - Improvements in chessmen : en
  • DE743811C - Fluid pump with spring-loaded pistons arranged parallel to the axis in a circle : de en
  • DE743873C - Storage of shafts : de en
  • GB558478A - Windshield cleaner : en
  • FR889208A - Improved basic dyes and their industrial and agricultural applications : en fr
  • FR889218A - Double-acting friction clutch : en fr
  • FR889283A - Large aperture photographic lens : en fr
  • DK61771C - Electric Irradiator with High Pressure Vapor Lamp. : da en
  • US2338134A - Variable tuning system : en
  • US2338565A - Electric cigar lighter : en
  • DE744058C - System for the transmission of messages from several detectors to a control center : de en
  • FR889193A - Peatland tool : en fr
  • DE743866C - Small calculating machine in a closed form with a drum hitting the types : de en
  • DE743939C - Centrifugal fan : de en
  • DE744037C - Component for metal construction kits : de en
  • FR889279A - Device for amplifying small electrical quantities : en fr
  • FR889327A - Concrete hardening process : en fr
  • DE743763C - Protection device for electrical equipment with liquid insulation : de en
  • DE743843C - Mixing tubes : de en
  • DE743848C - Process for the preparation of salts of water-insoluble azo dyes containing metal in complex bonds : de en
  • DE743882C - Coupling for trailer : de en
  • FR889194A - Coupling device for bicycles : en fr
  • US2338672A - Method of recovering film scrap : en
  • FR889382A - Electric capacitor : en fr
  • US2338567A - Collapsible merchandise display stand : en
  • US2338601A - Guiding and feeding device for ironers : en
  • GB558463A - Improvements in or relating to pumps for delivering measured volumes of liquid under pressure : en
  • GB558487A - An improved process for the alkylation of isoparaffins : en
  • DE743788C - Resistor arrangement for measuring the speed of flowing gases : de en
  • US2338561A - Inking mechanism for printing machines : en
  • FR889168A - Improvements to scrubbers for gasifiers : en fr
  • DE744043C - Upper part of valve with visibly rising stem : de en
  • AU123326B2 - Improvements in and relating to securing means for holders of thermionic valves, andthe like : en
  • FR889259A - Method of mounting the windings of bi and polyphase goniometers : en fr
  • GB558386A - Process for the preparation of anthraquinone derivatives : en
  • FR889322A - Improvements in the manufacture of dye intermediates and sensitizing dyes for photographic emulsions : en fr
  • GB558435A - Improvements in or relating to toothed gears : en
  • US2338195A - Stencil moistening machine : en
  • US2338229A - Method of polymerizing fraction of gashouse oil drip containing indene and coumarone : en
  • DE743851C - Process for the production of cellulose threads from well-ripened viscose : de en
  • US2338413A - Change-speed gear : en
  • US2338432A - Lamination of water-sensitive films : en
  • US2338681A - Reaction of acrylamide with cellulose : en
  • DE743924C - Process for the non-cutting deformation of sheet metal : de en
  • FR889374A - Apparatus for detecting vibrations : en fr
  • US2338518A - Dynamoelectric machine : en
  • US2338596A - Feeding and severing means for strip material : en
  • GB558359A - Improvements in or relating to switching systems for electric circuits particularly applicable to resistance welding and high frequency heating apparatus : en
  • US2338631A - Feeding mechanism for grinding machines : en
  • DE743789C - Payment card sorting machine : de en
  • US2338464A - Process for making urea-formaldehyde molding compositions and product therefrom : en
  • DE743990C - Laundry press with piston moved by a fluid pressure medium : de en
  • CA417576A - Coated paper : en fr
  • US2338281A - Electrical connector : en
  • US2338292A - Valve mechanism : en
  • US2338677A - Nondiffusing sulphonamide coupler for color photography : en
  • DE743971C - Electric circuit breakers, in particular switches with arc extinguishing by a flowing pressure medium : de en
  • CA417532A - High wet-strength paper product : en fr
  • US2338665A - Method of producing coupling parts : en
  • US2338106A - Process for the production of new efficacious p-amino-benzene-sulphamide derivativessuitable for injection purposes : en
  • FR889324A - Magnetically operated contactor with swinging or rolling armature : en fr
  • FR889328A - Process for the preparation of leuco-ethers-sulfuric salts and products obtained by this process : en fr
  • DE743798C - Process for making a health tea : de en
  • DE744055C - Process for obtaining protein from blood : de en
  • FR889370A - Further development of the Thomas process for steel fabrication : en fr
  • US2338501A - Apparatus for the magnetic separation of materials : en
  • FR889195A - Control improvements to centrifugal servo-brakes and the like : en fr
  • DE744090C - Fastening of electrical collector cells, especially steel collectors, in battery containers : de en
  • GB558467A - Improvements in and relating to wireless and like signalling systems : en
  • US2338517A - Method of polymerizing organic compounds : en
  • US2338619A - Method and apparatus for treating fibrous material : en
  • US2338674A - Hose coupling collapsing tool : en
  • US2338604A - Flexible or pliable container : en
  • USD136956S - Design for a coat : en
  • GB558442A - Improvements in or relating to thrust bearings : en
  • US2338120A - Explosive composition : en
  • US2338212A - Locomotive : en
  • DE744015C - Cathode ray tubes with two pairs of deflection plates that are perpendicular to one another and operated with asymmetrical deflection voltages : de en
  • US2338463A - Process of making filaments consisting of pure silicic acid : en
  • US2338358A - Clutch for portable power-driven tools : en
  • DE744012C - Socket for discharge tubes with electrostatic shielding of the power supply lines against each other : de en
  • DE743981C - Iron mine support : de en
  • US2338276A - Tension control device : en
  • US2338578A - Heating fuel oil : en
  • CA417535A - Resinous composition : en fr
  • US2338326A - Retractable pack-off device : en
  • CA417530A - Compass compensating means : en fr
  • DE743902C - Core arrangement of small transformers, chokes or the like. : de en
  • DE744028C - Disinfectants and preservatives : de en
  • AU1238543A - High frequency antenna : en
  • US2338656A - Hollow spindle yarn plying machine : en
  • FR889356A - carbon electrode catalytically activated by a precious metal, in particular for carrying out electrochemical operations and process for preparing this electrode : en fr
  • US2338444A - Metallic structure : en
  • US2338560A - Centrifugal casting apparatus : en
  • CA417591A - Glass breakage minimizing method : en fr
  • CA417602A - Windshield cleaner control : en fr
  • FR889212A - Product with an ambrettolide odor and method of preparing this product : en fr
  • CA417498A - Embossed seal making method : en fr
  • CA417590A - Hydrocarbon processing : en fr
  • US2338392A - Grease-knife cleaner : en
  • AU131440B2 - High frequency antenna : en
  • US2338399A - Means for reducing disturbances in concentric lines : en
  • AU809043A - Improved means for spreading flax on fields to promote retting and thereby to render the flax suitable for further processing in mills : en
  • CA417557A - Circuit protective system : en fr
  • US2338506A - Apparatus for generating gases : en
  • GB558413A - Drilling jigs : en
  • DE743940C - Hemorrhoidal bandage for men : de en
  • DE743946C - Counter for automatic scales, especially for weighing scales that weigh samples : de en
  • DE743959C - Device for checking camera shutters and synchronizing devices for flash units : de en
  • CA417524A - Metal finishing process : en fr
  • CA417594A - Vacuum diffusion pump : en fr
  • US2338513A - Flexible winding spool : en
  • DE743947C - Motor-driven calculating machine with semi-automatic multiplication : de en
  • DE743817C - Master cylinder for hydraulic fluid brakes, especially for motor vehicles : de en
  • FR889299A - New float for refloating wrecks : en fr
  • FR889398A - Varnish drying and baking oven : en fr
  • DE744000C - Control device for railcars : de en
  • US2338349A - Drilling hook : en
  • US2338245A - Fault-locating device : en
  • US2338504A - Flue bag filter : en
  • US2338588A - Method of making cereal food products : en
  • USD136983S - Design for a coat : en
  • US2338625A - Rock drill : en
  • DE743879C - Use of lead alloys for solders : de en
  • CA417542A - Fluorescent material : en fr
  • DE743861C - Process for the production of polyvinyl formates : de en
  • DE744099C - Fuse : de en
  • CA417505A - Closed circuit alarm : en fr
  • US2338167A - Tentering machine : en
  • US2338576A - Change-making device : en
  • US2338407A - Phosphoric acid manufacture : en
  • US2338510A - Trolley conductor device : en
  • GB558436A - Can : en
  • US2338177A - Condensation product and process of making same : en
  • CA417503A - Shelter for pigs : en fr
  • GB558492A - Improved composition for coating or living pipes and for similar purposes : en
  • US2338492A - Composition containing triazinyl carboxy-alkyl sulphides : en
  • USD136958S - Design fob a separable pin ob the like : en
  • DE744003C - Circuit arrangement for group dialers in telephone systems : de en
  • US2338586A - Method of handling catalysts : en
  • CA417609A - Electric motor : en fr
  • DE743832C - Process for the production of alkali salts of highly condensed phosphoric acids containing active oxygen : de en
  • USD136984S - Combination walker and stroller or similar article : en
  • FR889173A - Acetylene generator device : en fr
  • GB558443A - Improvements in or relating to brakes : en
  • US2338117A - Separator for evaporators : en
  • US2338279A - Utility bag : en
  • GB558402A - A device to prevent a bed-cover from slipping off a bed : en
  • US2338243A - Laminated elastic fabric : en
  • DE743917C - Device for drainage : de en
  • FR889332A - Superpolyamides and their preparation process : en fr
  • US2338679A - Fuel injector for internal combustion engines : en
  • FR889198A - Heavy-duty, lightweight diesel engine : en fr
  • FR889329A - Device for arc welding devices supplied with alternating current : en fr
  • FR889400A - tube bundle heat exchanger : en fr
  • US2338497A - Lens coating : en
  • FR889223A - Demountable buildings with molded and profiled elements : en fr
  • DE744041C - Pistons, preferably light metal pistons for internal combustion engines : de en
  • US2338446A - Bubble cap shield : en
  • US2338460A - Electrical distribution system for vehicles : en
  • GB558428A - Elastic edge finishing strip, edging or beading for shoes and the like : en
  • GB558385A - Hydrocarbon conversion : en
  • DE698752C - Circuit arrangement for reproducing sound recordings in half-wave writing : de en
  • DE743765C - Beam exit window, especially for X-ray tubes : de en
  • GB558444A - Improvements relating to vapour electric apparatus : en
  • GB558460A - Improvements in apparatus for controlling the temperature of a fluid such as the cooling fluid or lubricating oil of an engine : en
  • FR889200A - Printing process for play mats : en fr
  • FR889152A - New system for fixing wooden handles on a tube : en fr
  • GB558360A - Improvement in engine starter gearing : en
  • DE743837C - Ensuring the manual drive for devices that are optionally driven by electric motor or by hand : de en
  • US2338417A - Filtering and like treatment of fluids : en
  • US2338555A - Forward rowing mechanism : en
  • USD136955S - Design fob a tot rocking horse : en
  • DE749897C - Frequency modulation circuit for constant frequency deviation : de en
  • US2338373A - Disintegratorlike device : en
  • US2338398A - Wet grind ball mill : en
  • US2338543A - Modified phenolic resin : en
  • DE743878C - Chip removal device for a vertical drilling spindle of a tool head with chip removal channel provided on the same axis as the switching axis : de en
  • US2338459A - Process for producing vinyl chloride : en
  • US2338090A - Connection for heat exchange systems : en
  • US2338495A - Radiator vent valve : en
  • US2338155A - Facsimile printing telegraph system and apparatus : en
  • US2338275A - Printing telegraph apparatus : en
  • US2338667A - Water treatment apparatus : en
  • DE743929C - Power transmission arrangement in which the movement of a continuously running drive shaft is transmitted to a second shaft and a cam arrangement with the aid of a coupling, in particular for type printing telegraph apparatus : de en
  • US2338550A - Tractor track : en
  • US2338361A - Digging and loading machine : en
  • DE744026C - Method for post-treating viscose rayon : de en
  • GB558351A - Improvements in or relating to electrical relays or converters : en
  • US2338507A - Method and apparatus for manufacture of electron tubes and the like : en
  • US2338556A - Carrier wave circuit protection : en
  • US2338568A - Isomerization of paraffinic hydrocarbons : en
  • FR889188A - Improvements in the manufacture of parts by cutting : en fr
  • FR889155A - Revolver fuse circuit breaker : en fr
  • FR889295A - Process and furnace for the preparation of copper halides : en fr
  • US2338129A - Method of determining the rate of drying of coatings : en
  • US2338528A - Method of finishing gears by shaving : en
  • US2338529A - Electrodeposition of nickel : en
  • US2338218A - Time-measuring device : en
  • FR889305A - Sedimentation filter : en fr
  • DE744092C - Lever switch, in particular for triggering alarms in telecommunications systems : de en
  • US2338337A - Potato picking and bagging machine : en
  • US2338447A - Driving belt : en
  • DE743908C - Machine for spreading cut grass : de en
  • DE743995C - Process for improving the synthesis gas intended for Fischer-Tropsch gasoline synthesis : de en
  • US2338687A - Machine for scalping bars : en
  • CA417545A - Gas blast circuit breaker : en fr
  • FR889397A - Improvement in lures for fishing : en fr
  • DE743905C - Rotating plate capacitor : de en
  • US2338256A - Device for clamping metal bars or strips : en
  • GB558458A - Improvements in or relating to apparatus for controlling a water supply for domestic and like purposes : en
  • DE743830C - Fortification of column floors : de en
  • DE743955C - Process for the production of gold and gold alloy deposits from permanent baths by means of electrical current : de en
  • US2338476A - Centrifugal coupling : en
  • US2338139A - Slicing machine : en
  • US2338633A - Shedding mechanism for looms : en
  • US2338377A - Perpetual calendar : en
  • US2338590A - Printing apparatus : en
  • DE743828C - Device for integrating books u. Like. In half linen or half leather band by hand : de en
  • DE743961C - Three-way tipper for vehicles : de en
  • US2338207A - Edible oil and fat : en
  • FR889213A - Clutch device : en fr
  • DK61761C - Lamp with two communicating Containers. : da en
  • FR889201A - Device for ironing razor blades : en fr
  • USD136954S - Design for a flowerpot : en
  • US2338362A - Means for maintaining overrun in ice cream and like products : en
  • FR889338A - Refrigerator by mercury pump : en fr
  • US2338085A - Winding machine : en
  • FR889320A - Process for establishing reinforced concrete structures : en fr
  • FR889175A - Improvements to the transmission of force received in rotary turbo-engines : en fr
  • US2338305A - Electric control switch : en
  • USD136947S - Design for a finger claw weeder : en
  • US2338144A - Furnace humidifier : en
  • US2338610A - Method for making fibrous pads or mats : en
  • FR889323A - Microscope objective : en fr
  • FR889333A - Rackmount for watch movements : en fr
  • DE743899C - Electric control device for stage lighting : de en
  • DE743975C - Sheet-like corrective or informative means : de en
  • US2338508A - Apparatus for treating sheathed articles : en
  • DE742847C - Protection device with float relay for oil-filled electrical devices : de en
  • DE743827C - Process for the production of print samples with water-insoluble organic dyes on textile surfaces made of cellulose fibers with shrinkage of the printed areas : de en
  • FR889285A - Process for the preparation of dye and sensitizing dye intermediates for photographic emulsions : en fr
  • GB558416A - Selector switch : en
  • CA417544A - Gas blast circuit breaker : en fr
  • FR889160A - Improvements to methods and devices for so-called permanent waving of hair : en fr